Answer:
the correct answer is b: fluid
Explanation:
i did it and got it wrong and it gave me the correct answer
<span>Some bacteria in the soil fix nitrogen into useful forms for plants to use them. This conversion of nitrogen helps plants grow. Without the bacteria in the soil a lot of the plants would not be able to grow.</span>
Evolution, because it can prove how organisms evolved from past lives.
Answer would be sarcoplasmic reticulum